asp.net - Why always selectedindexchanged is firing when i click on checklistbox dropdownlist in c#? -


ti have 1 checklistbox dropdownlist firing when click on dropdown.but not selecting of listing in dropdown.how fix that.

<asp:dropdowncheckboxes id="ddcbproductstockitem" runat="server" autopostback="true"         enableviewstate="true" usebuttons="false" useselectallnode="true"       cssclass="form-control"       onselectedindexchanged="ddcbproductstockitem_selectedindexchanged">      <style selectboxwidth="200" dropdownboxboxwidth="200" dropdownboxboxheight="130" />      <texts selectboxcaption="select item" /> </asp:dropdowncheckboxes>

in cs page, 

if (!ispostback)  {    binditem();  }

try setting autopostback="false"

"autopostback == true && usebuttons == false - no action buttons ( 'ok/cancel' ) displayed, postback occurs whenever user leaves expanded drop down clicking outside it."

you can see here more details


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